Home / 98,711.90-136,222.02-53,389.94

Finding the Fourth Proportional to 98,711.90, 136,222.02 and 53,389.94

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Solution

The fourth proportional to 98,711.90, 136,222.02 and 53,389.94 is: 73,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,711.90 : 136,222.02 = 53,389.94 : x
  2. Step 2: Convert to fraction form
    98,711.90/136,222.02 = 53,389.94/x
  3. Step 3: Cross multiply
    98,711.90x = 136,222.02 × 53,389.94
  4. Step 4: Simplify right side
    98,711.90x = 7,272,884,793.37
  5. Step 5: Solve for x
    x = 7,272,884,793.37/98,711.90
  6. Step 6: Final answer
    x = 73,677.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.